Camera optical lens

ABSTRACT

A camera optical lens is provided. The camera optical lens includes, from an object side to an image side, a first lens, a second lens having a negative refractive power, a third lens, a fourth lens, a fifth lens, a sixth lens, a seventh lens, an eighth lens, and a ninth lens. The camera optical lens satisfies following conditions: 2.00≤f1/f≤5.50; and 2.00≤d7/d8≤10.00, where f denotes a focal length of the camera optical lens, f1 denotes a focal length of the first lens, d7 denotes an on-axis thickness of the fourth lens, and d8 denotes an on-axis distance from an image side surface of the fourth lens to an object side surface of the fifth lens. The camera optical lens according to the present disclosure satisfies design requirements for large-aperture, wide-angle, and ultra-thin lenses while achieving good optical performance.

TECHNICAL FIELD

The present disclosure relates to the field of optical lenses, and inparticular, to a camera optical lens applicable to portable terminaldevices such as smart phones or digital cameras, and camera devices suchas monitors or PC lenses.

BACKGROUND

With the emergence of smart phones in recent years, the demand forminiature camera lens has been increased. However, a photosensitivedevice of general camera lens is either a Charge Coupled Device (CCD) ora Complementary Metal-Oxide Semiconductor Sensor (CMOS Sensor). With theprogress of the semiconductor manufacturing technology, the pixel sizeof the photosensitive device becomes smaller. In addition, the currentelectronic products have been developed to have better functions andlighter and smaller dimensions. Therefore, a miniature camera lens withgood imaging quality has already become a mainstream in the currentmarket.

In order to obtain better imaging quality, a traditional lens equippedin a mobile phone camera usually adopts a three-piece or four-piecestructure, or even five-piece or six-piece structure. However, with thedevelopment of technologies and the increase of the various demands ofusers, a nine-piece structure gradually appears in lens designs as thepixel area of the photosensitive devices is constantly reduced and therequirement of the system on the imaging quality is constantly improved.Although the common nine-piece lens already has better opticalperformance, its settings on refractive power, lens spacing, and lensshape are still unreasonable to some extent. As a result, the lensstructure cannot meet design requirements for ultra-thin, wide-anglelenses having a big aperture while achieving a good optical performance.

SUMMARY

In view of the above problems, the present disclosure provides a cameraoptical lens, which meets design requirements for large aperture,ultra-thinness and wide angle while achieving good optical performance.

In an embodiment, the present disclosure provides a camera optical lens.The camera optical lens includes, from an object side to an image side,a first lens, a second lens having a negative refractive power, a thirdlens, a fourth lens, a fifth lens, a sixth lens, a seventh lens, aneighth lens, and a ninth lens.

The camera optical lens satisfies following conditions: 2.00≤f1/f≤5.50;and 2.00≤d7/d8≤10.00, where f denotes a focal length of the cameraoptical lens, f1 denotes a focal length of the first lens, d7 denotes anon-axis thickness of the fourth lens, and d8 denotes an on-axis distancefrom an image side surface of the fourth lens to an object side surfaceof the fifth lens.

As an improvement, the camera optical lens further satisfies a conditionof −12.00≤(R13+R14)/(R13−R14)≤−5.00, where R13 denotes a centralcurvature radius of an object side surface of the seventh lens, and R14denotes a central curvature radius of an image side surface of theseventh lens.

As an improvement, the camera optical lens further satisfies followingconditions: −16.17≤(R1+R2)/(R1−R2)≤−2.14; and 0.02≤d1/TTL≤0.08, where R1denotes a central curvature radius of an object side surface of thefirst lens, R2 denotes a central curvature radius of an image sidesurface of the first lens, d1 denotes an on-axis thickness of the firstlens, and TTL denotes a total optical length from the object sidesurface of the first lens to an image plane of the camera optical lensalong an optic axis.

As an improvement, the camera optical lens further satisfies followingconditions: −3148.17≤f2/f≤−1.17; 0.60≤(R3+R4)/(R3−R4)≤249.12; and0.01≤d3/TTL≤0.04, where f2 denotes a focal length of the second lens, R3denotes a central curvature radius of an object side surface of thesecond lens, R4 denotes a central curvature radius of an image sidesurface of the second lens, d3 denotes an on-axis thickness of thesecond lens, and TTL denotes a total optical length from an object sidesurface of the first lens to an image plane of the camera optical lensalong an optic axis.

As an improvement, the camera optical lens further satisfies followingconditions: 1.52≤f3/f≤22.85; −110.87≤(R5+R6)/(R5−R6)≤−2.45; and0.01≤d5/TTL≤0.05, where f3 denotes a focal length of the third lens, R5denotes a central curvature radius of an object side surface of thethird lens, R6 denotes a central curvature radius of an image sidesurface of the third lens, d5 denotes an on-axis thickness of the thirdlens, and TTL denotes a total optical length from an object side surfaceof the first lens to an image plane of the camera optical lens along anoptic axis.

As an improvement, the camera optical lens further satisfies followingconditions: 0.43≤f4/f≤1.93; 0.25≤(R7+R8)/(R7−R8)≤1.45; and0.03≤d7/TTL≤0.11, where f4 denotes a focal length of the fourth lens, R7denotes a central curvature radius of an object side surface of thefourth lens, R8 denotes a central curvature radius of the image sidesurface of the fourth lens, and TTL denotes a total optical length froman object side surface of the first lens to an image plane of the cameraoptical lens along an optic axis.

As an improvement, the camera optical lens further satisfies followingconditions: −3.00≤f5/f≤−0.87; −5.88≤(R9+R10)/(R9−R10)≤−1.77; and0.01≤d9/TTL≤0.08, where f5 denotes a focal length of the fifth lens, R9denotes a central curvature radius of the object side surface of thefifth lens, R10 denotes a central curvature radius of an image sidesurface of the fifth lens, d9 denotes an on-axis thickness of the fifthlens, and TTL denotes a total optical length from an object side surfaceof the first lens to an image plane of the camera optical lens along anoptic axis.

As an improvement, the camera optical lens further satisfies followingconditions: 1.81≤f6/f≤7.29; 1.99≤(R11+R12)/(R11−R12)≤9.33; and0.05≤d11/TTL≤0.22, where f6 denotes a focal length of the sixth lens,R11 denotes a central curvature radius of an object side surface of thesixth lens, R12 denotes a central curvature radius of an image sidesurface of the sixth lens, d11 denotes an on-axis thickness of the sixthlens, and TTL denotes a total optical length from an object side surfaceof the first lens to an image plane of the camera optical lens along anoptic axis.

As an improvement, the camera optical lens further satisfies followingconditions: 1.38≤f7/f≤6.04; and 0.03≤d13/TTL≤0.13, where f7 denotes afocal length of the seventh lens, d13 denotes an on-axis thickness ofthe seventh lens, and TTL denotes a total optical length from an objectside surface of the first lens to an image plane of the camera opticallens along an optic axis.

As an improvement, the camera optical lens further satisfies followingconditions: −18.72≤f8/f≤26.57; −113.76≤(R15+R16)/(R15−R16)≤22.56; and0.02≤d15/TTL≤0.15, where f8 denotes a focal length of the eighth lens,R15 denotes a central curvature radius of an object side surface of theeighth lens, R16 denotes a central curvature radius of an image sidesurface of the eighth lens, d15 denotes an on-axis thickness of theeighth lens, and TTL denotes a total optical length from an object sidesurface of the first lens to an image plane of the camera optical lensalong an optic axis.

As an improvement, the camera optical lens further satisfies followingconditions: −2.95≤f9/f≤−0.76; 1.02≤(R17+R18)/(R17−R18)≤4.50; and0.03≤d17/TTL≤0.13, where f9 denotes a focal length of the ninth lens,R17 denotes a central curvature radius of an object side surface of theninth lens, R18 denotes a central curvature radius of an image sidesurface of the ninth lens, d17 denotes an on-axis thickness of the ninthlens, and TTL denotes a total optical length from an object side surfaceof the first lens to an image plane of the camera optical lens along anoptic axis.

The present disclosure has the following beneficial effects. The cameraoptical lens according to the present disclosure has excellent opticalperformance while achieving the characteristics of large aperture, wideangle and ultra-thinness, particularly applicable to camera lensassembly of mobile phones and WEB camera lenses composed of CCD, CMOS,and other camera elements for high pixels.

BRIEF DESCRIPTION OF DRAWINGS

In order to clearly illustrate technical solutions in embodiments of thepresent disclosure, the accompanying drawings used in the embodimentsare briefly introduced as follows. It is apparent that the drawingsdescribed below are merely part of the embodiments of the presentdisclosure. Other drawings can also be acquired by those of ordinaryskill in the art without involving inventive steps. In the drawings,

FIG. 1 is a schematic structural diagram of a camera optical lensaccording to Embodiment 1 of the present disclosure;

FIG. 2 is a schematic diagram of longitudinal aberration of the cameraoptical lens shown in FIG. 1 ;

FIG. 3 is a schematic diagram of lateral color of the camera opticallens shown in FIG. 1 ;

FIG. 4 is a schematic diagram of field curvature and distortion of thecamera optical lens shown in FIG. 1 ;

FIG. 5 is a schematic structural diagram of a camera optical lensaccording to Embodiment 2 of the present disclosure;

FIG. 6 is a schematic diagram of longitudinal aberration of the cameraoptical lens shown in FIG. 5 ;

FIG. 7 is a schematic diagram of lateral color of the camera opticallens shown in FIG. 5 ;

FIG. 8 is a schematic diagram of field curvature and distortion of thecamera optical lens shown in FIG. 5 ;

FIG. 9 is a schematic structural diagram of a camera optical lensaccording to Embodiment 3 of the present disclosure;

FIG. 10 is a schematic diagram of longitudinal aberration of the cameraoptical lens shown in FIG. 9 ;

FIG. 11 is a schematic diagram of lateral color of the camera opticallens shown in FIG. 9 ; and

FIG. 12 is a schematic diagram of field curvature and distortion of thecamera optical lens shown in FIG. 9 .

DESCRIPTION OF EMBODIMENTS

Embodiments of the present disclosure will hereinafter be described indetail with reference to the accompanying drawings so as to make thepurpose, technical solutions, and advantages of the present disclosuremore apparent. However, those of skilled in the art can understand thatmany technical details described hereby in each embodiment of thepresent disclosure is only to provide a better comprehension of thepresent disclosure. Even without these technical details and variouschanges and modifications based on the following embodiments, thetechnical solutions of the present disclosure can also be implemented.

Embodiment 1

Referring to the drawings, the present disclosure provides a cameraoptical lens 10. FIG. 1 illustrates the camera optical lens 10 accordingto Embodiment 1 of the present disclosure. The camera optical lens 10includes nine lenses. Specifically, the camera optical lens 10successively includes, from an object side to an image side, an apertureS1, a first lens L1, a second lens L2, a third lens L3, a fourth lensL4, a fifth lens L5, a sixth lens L6, a seventh lens L7, an eighth lensL8, and a ninth lens L9. An optical element such as an optical filter GFmay be provided between the ninth lens L9 and an image plane Si.

In the present embodiment, the first lens L1 has a positive refractivepower, the second lens L2 has a negative refractive power, the thirdlens L3 has a positive refractive power, the fourth lens L4 has apositive refractive power, the fifth lens L5 has a negative refractivepower, the sixth lens L6 has a positive refractive power, the seventhlens L7 has a positive refractive power, the eighth lens L8 has apositive refractive power, and the ninth lens L9 has a negativerefractive power.

In this embodiment, the first lens L1 is made of a plastic material, thesecond lens L2 is made of a plastic material, the third lens L3 is madeof a plastic material, the fourth lens L4 is made of a plastic material,the fifth lens L5 is made of a plastic material, the sixth lens L6 ismade of a plastic material, the seventh lens L7 is made of a plasticmaterial, the eighth lens L8 is made of a plastic material, and theninth lens L9 is made of a plastic material. In other embodiments, eachof the lenses may also be made of other material.

In the present embodiment, a focal length of the camera optical lens 10is defined as f, and a focal length of the first lens L1 is defined asf1. The camera optical leans 10 satisfies a condition of 2.00≤f1/f≤5.50,which specifies a ratio of the focal length of the first lens to thefocal length of the camera optical leans. When the condition issatisfied, spherical aberration and field curvature of the system can beeffectively balanced.

An on-axis thickness of the fourth lens L4 is defined as d7, and anon-axis distance from an image side surface of the fourth lens L4 to anobject side surface of the fifth lens L5 is defined as d8. The cameraoptical leans 10 satisfies a condition of 2.00≤d7/d8≤10.00, whichspecifies a ratio of a thickness of the fourth lens to an air gapbetween the fourth lens and the fifth lens. This condition facilitatesreducing a total length of the optical system, thereby achieving anultra-thin effect.

A central curvature radius of an object side surface of the seventh lensL7 is defined as R13, and a central curvature radius of an image sidesurface of the seventh lens L7 is defined as R14. The camera opticalleans 10 satisfies a condition of −12.00≤(R13+R14)/(R13−R14)≤−5.00,which specifies a shape of the seventh lens. This condition canalleviate the deflection of light passing through the lens, therebyeffectively reducing aberration.

In the present embodiment, the first lens L1 includes an object sidesurface being convex at a paraxial position and an image side surfacebeing concave at the paraxial position.

A central curvature radius of the object side surface of the first lensL1 is defined as R1, and a central curvature radius of the image sidesurface of the first lens L1 is defined as R2. The camera optical leans10 satisfies a condition of −16.17≤(R1+R2)/(R1−R2)≤−2.14. This conditioncan reasonably control a shape of the first lens L1, such that the firstlens L1 can effectively correct spherical aberration of the system. Asan example, the camera optical leans 10 satisfies a condition of−10.11≤(R1+R2)/(R1−R2)≤−2.68.

An on-axis thickness of the first lens L1 is defined as d1, and a totaloptical length of the camera optical lens 10 is defined as TTL. Thecamera optical leans 10 satisfies a condition of 0.02≤d1/TTL≤0.08. Thiscondition can facilitate achieving ultra-thin lenses. As an example, thecamera optical leans 10 satisfies a condition of 0.03≤d1/TTL≤0.07.

In this embodiment, an object side surface of the second lens L2 is aconvex surface at the paraxial position, and an image side surface ofthe second lens L2 is a concave surface at the paraxial position.

The focal length of the camera optical lens 10 is defined as f, and afocal length of the second lens L2 is defined as f2. The camera opticalleans 10 satisfies a condition of −3148.17≤f2/f≤−1.17. This conditioncan facilitate aberration correction of the optical system bycontrolling a negative refractive power of the second lens L2 within areasonable range. As an example, the camera optical leans 10 satisfies acondition of −1967.60≤f2/f≤−1.46.

A central curvature radius of the object side surface of the second lensL2 is defined as R3, and a central curvature radius of the image sidesurface of the second lens L2 is defined as R4. The camera optical leans10 satisfies a condition of 0.60≤(R3+R4)/(R3−R4)≤249.12, which specifiesa shape of the second lens L2. This condition can facilitate correctingthe on-axis aberration with development of ultra-thin and wide-anglelenses. As an example, the camera optical leans 10 satisfies a conditionof 0.96≤(R3+R4)/(R3−R4)≤199.29.

An on-axis thickness of the second lens L2 is defined as d3, and thetotal optical length of the camera optical lens 10 is defined as TTL.The camera optical leans 10 satisfies a condition of 0.01≤d3/TTL≤0.04.This condition can achieve ultra-thin lenses. As an example, the cameraoptical leans 10 satisfies a condition of 0.01≤d3/TTL≤0.03.

In this embodiment, an object side surface of the third lens L3 is aconvex surface at the paraxial position, and an image side surface ofthe third lens L3 is a concave surface at the paraxial position.

The focal length of the camera optical lens 10 is defined as f, and afocal length of the third lens L3 is defined as f3. The camera opticalleans 10 satisfies a condition of 1.52≤f3/f≤22.85. The system thereforeachieves a better imaging quality and a lower sensitivity by reasonablydistributing the refractive power. As an example, the camera opticalleans 10 satisfies a condition of 2.43≤f3/f≤18.28.

A central curvature radius of the object side surface of the third lensL3 is defined as R5, and a central curvature radius of the image sidesurface of the third lens L3 is defined as R6. The camera optical leans10 satisfies a condition of −110.87≤(R5+R6)/(R5−R6)≤−2.45, whichspecifies a shape of the third lens. This condition can alleviate thedeflection of light passing through the lens, thereby effectivelyreducing the aberration. As an example, the camera optical leans 10satisfies a condition of −69.29≤(R5+R6)/(R5−R6)≤−3.06.

The total optical length of the camera optical lens 10 is defined asTTL, and an on-axis thickness of the third lens L3 is defined as d5. Thecamera optical leans 10 satisfies a condition of 0.01≤d5/TTL≤0.05. Thiscondition can facilitate achieving ultra-thin lenses. As an example, thecamera optical leans 10 satisfies a condition of 0.02≤d5/TTL≤0.04.

In this embodiment, an object side surface of the fourth lens L4 is aconvex surface at the paraxial position, and the image side surface ofthe fourth lens L4 is a concave surface at the paraxial position.

The focal length of the camera optical lens 10 is defined as f, and afocal length of the fourth lens L4 is defined as f4. The camera opticalleans 10 satisfies a condition of 0.43≤f4/f≤1.93, which specifies aratio of the focal length of the fourth lens to the focal length of thecamera optical lens. This condition can improve the performance of theoptical system. As an example, the camera optical leans 10 satisfies acondition of 0.70≤f4/f≤1.55.

A central curvature radius of the object side surface of the fourth lensL4 is defined as R7, and a central curvature radius of the image sidesurface of the fourth lens L4 is defined as R8. The camera optical leans10 satisfies a condition of 0.25≤(R7+R8)/(R7−R8)≤1.45, which specifies ashape of the fourth lens L4. This condition can facilitate aberrationcorrection of an off-axis angle of view with development of ultra-thinand wide-angle lenses. As an example, the camera optical leans 10satisfies a condition of 0.40≤(R7+R8)/(R7−R8)≤1.16.

The total optical length of the camera optical lens 10 is defined asTTL, and an on-axis thickness of the fourth lens L4 is defined as d7.The camera optical leans 10 satisfies a condition of 0.03≤d7/TTL≤0.11.This condition can facilitate achieving ultra-thin lenses. As anexample, the camera optical leans 10 satisfies a condition of0.05≤d7/TTL≤0.09.

In the present embodiment, the fifth lens L5 includes the object sidesurface being concave at the paraxial position and an image side surfacebeing convex in the paraxial position.

The focal length of the camera optical lens 10 is defined as f, and afocal length of the fifth lens L5 is defined as f5. The camera opticalleans 10 satisfies a condition of −3.00≤f5/f≤−0.87. The fifth lens L5 islimited to effectively make a light angle of the camera optical lens 10gentle and reduce the tolerance sensitivity. As an example, the cameraoptical leans 10 satisfies a condition of −1.88≤f5/f≤−1.09.

A central curvature radius of the object side surface of the fifth lensL5 is defined as R9, and a central curvature radius of the image sidesurface of the fifth lens L5 is defined as R10. The camera optical leans10 satisfies a condition of −5.88≤(R9+R10)/(R9−R10)≤−1.77, whichspecifies a shape of the fifth lens L5. This condition can facilitateaberration correction of an off-axis angle of view with development ofultra-thin and wide-angle lenses. As an example, the camera opticalleans 10 satisfies a condition of −3.67≤(R9+R10)/(R9−R10)≤−2.21.

The total optical length of the camera optical lens 10 is defined asTTL, and an on-axis thickness of the fifth lens L5 is defined as d9. Thecamera optical leans 10 satisfies a condition of 0.01≤d9/TTL≤0.08. Thiscondition can facilitate achieving ultra-thin lenses. As an example, thecamera optical leans 10 satisfies a condition of 0.02≤d9/TTL≤0.06.

In this embodiment, an object side surface of the sixth lens L6 is aconcave surface at the paraxial position, and an image side surface ofthe sixth lens L6 is a convex surface at the paraxial position.

The focal length of the camera optical lens 10 is defined as f, and afocal length of the sixth lens L6 is defined as f6. The camera opticalleans 10 satisfies a condition of 1.81≤f6/f≤7.29. The system thereforeachieves a better imaging quality and a lower sensitivity by reasonablydistributing the refractive power. As an example, the camera opticalleans 10 satisfies a condition of 2.89≤f6/f≤5.83.

A central curvature radius of the object side surface of the sixth lensL6 is defined as R11, and a central curvature radius of the image sidesurface of the sixth lens L6 is defined as R12. The camera optical leans10 satisfies a condition of 1.99≤(R11+R12)/(R11−R12)≤9.33, whichspecifies a shape of the sixth lens L6. This condition can facilitateaberration correction of an off-axis angle of view with development ofultra-thin and wide-angle lenses. As an example, the camera opticalleans 10 satisfies a condition of 3.18≤(R11+R12)/(R11−R12)≤7.46.

The total optical length of the camera optical lens 10 is defined asTTL, and an on-axis thickness of the sixth lens L6 is defined as d11.The camera optical leans 10 satisfies a condition of 0.05≤d11/TTL≤0.22.This condition can facilitate achieving ultra-thin lenses. As anexample, the camera optical leans 10 satisfies a condition of0.08≤d11/TTL≤0.17.

In the present embodiment, the seventh lens L7 includes an object sidesurface being convex at the paraxial position and an image side surfacebeing concave at the paraxial position.

The focal length of the camera optical lens 10 is defined as f, and afocal length of the seventh lens L7 is defined as P. The camera opticalleans 10 satisfies a condition of 1.38≤f7/f≤6.04. The system thereforeachieves a better imaging quality and a lower sensitivity by reasonablydistributing the refractive power. As an example, the camera opticalleans 10 satisfies a condition of 2.21≤f7/f≤4.83.

The total optical length of the camera optical lens 10 is defined asTTL, and an on-axis thickness of the seventh lens L7 is defined as d13.The camera optical leans 10 satisfies a condition of 0.03≤d13/TTL≤0.13.This condition can facilitate achieving ultra-thin lenses. As anexample, the camera optical leans 10 satisfies a condition of0.04≤d13/TTL≤0.11.

In this embodiment, an object side surface of the eighth lens L8 is aconvex surface at the paraxial position, and an image side surface ofthe eighth lens L8 is a concave surface at the paraxial position.

The focal length of the camera optical lens 10 is defined as f, and afocal length of the eighth lens L8 is defined as f8. The camera opticalleans 10 satisfies a condition of −18.72≤f8/f≤26.57. The systemtherefore achieves a better imaging quality and a lower sensitivity byreasonably distributing the refractive power. As an example, the cameraoptical leans 10 satisfies a condition of −11.70≤Nf≤21.26.

A central curvature radius of the object side surface of the eighth lensL8 is defined as R15, and a central curvature radius of the image sidesurface of the eighth lens L8 is defined as R16. The camera opticalleans 10 satisfies a condition of −113.76≤(R15+R16)/(R15−R16)≤22.56,which specifies a shape of the eighth lens. This condition canfacilitate aberration correction of an off-axis angle of view withdevelopment of ultra-thin and wide-angle lenses. As an example, thecamera optical leans 10 satisfies a condition of−71.10≤(R15+R16)/(R15−R16)≤18.05.

The total optical length of the camera optical lens 10 is defined asTTL, and an on-axis thickness of the eighth lens L8 is defined as d15.The camera optical leans 10 satisfies a condition of 0.02≤d15/TTL≤0.15.This condition can facilitate achieving ultra-thin lenses. As anexample, the camera optical leans 10 satisfies a condition of0.03≤d15/TTL≤0.12.

In this embodiment, an object side surface of the ninth lens L9 is aconvex surface at the paraxial position, and an image side surface ofthe ninth lens L9 is a concave surface at the paraxial position.

The focal length of the camera optical lens 10 is defined as f, and afocal length of the ninth lens L9 is defined as f9. The camera opticalleans 10 satisfies a condition of −2.95≤f9/f≤−0.76. The system thereforeachieves a better imaging quality and a lower sensitivity by reasonablydistributing the refractive power. As an example, the camera opticalleans 10 satisfies a condition of −1.84≤f9/f≤−0.95.

A central curvature radius of the object side surface of the ninth lensL9 is defined as R17, and a central curvature radius of the image sidesurface of the ninth lens L9 is defined as R18. The camera optical leans10 satisfies a condition of 1.02≤(R17+R18)/(R17−R18)≤4.50, whichspecifies a shape of the ninth lens. This condition can facilitateaberration correction of an off-axis angle of view with development ofultra-thin and wide-angle lenses. As an example, the camera opticalleans 10 satisfies a condition of 1.63≤(R17+R18)/(R17−R18)≤3.60.

The total optical length of the camera optical lens 10 is defined asTTL, and an on-axis thickness of the ninth lens L9 is defined as d17.The camera optical leans 10 satisfies a condition of 0.03≤d17/TTL≤0.13.This condition can facilitate achieving ultra-thin lenses. As anexample, the camera optical leans 10 satisfies a condition of0.05≤d17/TTL≤0.10.

In this embodiment, an image height of the camera optical lens 10 isdefined as IH, and the total optical length of the camera optical lens10 is defined as TTL. The camera optical leans 10 satisfies a conditionof TTL/IH≤1.55, thereby achieving ultra-thin lenses.

In the present embodiment, a field of view angle (FOV) of the cameraoptical lens 10 is greater than or equal to 84°, thereby achieving awide angle.

In the present embodiment, an F number FNO of the camera optical lens 10is smaller than or equal to 1.96, thereby achieving a large aperture.The camera optical lens has good imaging performance.

When the above conditions are satisfied, the camera optical lens 10 canmeet design requirements of a large aperture, a wide angle, andultra-thinness while having good optical performance. According to thecharacteristics of the camera optical lens 10, the camera optical lens10 is particularly applicable to a mobile phone camera lens assembly anda WEB camera lens composed of high pixel CCD, CMOS, and other cameraelements.

Examples of the camera optical lens 10 of the present disclosure aredescribed below. Symbols described in each example will be described asfollows. The focal length, on-axis distance, central curvature radius,on-axis thickness, inflexion point position, and arrest point positionare all in units of mm.

TTL: total optical length (on-axis distance from the object side surfaceof the first lens L1 to the image plane Si) in mm.

F number (FNO): a ratio of an effective focal length of the cameraoptical lens to an entrance pupil diameter of the camera optical lens.

In some embodiments, at least one of the object side surface or theimage side surface of each lens is provided with at least one ofinflection points or arrest points to meet high-quality imagingrequirements. The specific implementations can be referred to thefollowing description.

Table 1 and Table 2 indicate design data of the camera optical lens 10according to the Embodiment 1 of the present disclosure.

TABLE 1 R d nd vd S1 ∞  d0 = −0.424 R1 3.372  d1 = 0.480 nd1 1.5444 v155.82 R2 6.248  d2 = 0.226 R3 8.521  d3 = 0.251 nd2 1.5444 v2 55.82 R48.419  d4 = 0.027 R5 4.001  d5 = 0.274 nd3 1.6613 v3 20.37 R6 4.148  d6= 0.595 R7 262.834  d7 = 0.596 nd4 1.5444 v4 55.82 R8 −4.533  d8 = 0.298R9 −3.080  d9 = 0.359 nd5 1.6613 v5 20.37 R10 −6.256 d10 = 0.024 R11−7.432 d11 = 0.892 nd6 1.5444 v6 55.82 R12 −5.373 d12 = 0.025 R13 3.965d13 = 0.482 nd7 1.5367 v7 53.82 R14 5.586 d14 = 0.973 R15 6.51 d15 =0.879 nd8 1.6613 v8 20.37 R16 6.743 d16 = 0.873 R17 8.446 d17 = 0.758nd9 1.6359 v9 23.82 R18 2.878 d18 = 0.411 R19 ∞ d19 = 0.210 ndg 1.5168vg 64.17 R20 ∞ d20 = 0.207

In the above table, meanings of the symbols will be described asfollows.

-   -   S1: aperture;    -   R: curvature radius at center of an optical surface;    -   R1: central curvature radius of the object side surface of the        first lens L1;    -   R2: central curvature radius of the image side surface of the        first lens L1;    -   R3: central curvature radius of the object side surface of the        second lens L2;    -   R4: central curvature radius of the image side surface of the        second lens L2;    -   R5: central curvature radius of the object side surface of the        third lens L3;    -   R6: central curvature radius of the image side surface of the        third lens L3;    -   R7: central curvature radius of the object side surface of the        fourth lens L4;    -   R8: central curvature radius of the image side surface of the        fourth lens L4;    -   R9: central curvature radius of the object side surface of the        fifth lens L5;    -   R10: central curvature radius of the image side surface of the        fifth lens L5;    -   R11: central curvature radius of the object side surface of the        sixth lens L6;    -   R12: central curvature radius of the image side surface of the        sixth lens L6;    -   R13: central curvature radius of the object side surface of the        seventh lens L7;    -   R14: central curvature radius of the image side surface of the        seventh lens L7;    -   R15: central curvature radius of the object side surface of the        eighth lens L8;    -   R16: central curvature radius of the image side surface of the        eighth lens L8;    -   R17: central curvature radius of the object side surface of the        ninth lens L9;    -   R18: central curvature radius of the image side surface of the        ninth lens L9;    -   R19: central curvature radius of the object side surface of the        optical filter GF;    -   R20: central curvature radius of the image side surface of the        optical filter GF;    -   d: on-axis thickness of a lens and an on-axis distance between        the lenses;    -   d0: on-axis distance from the aperture S1 to the object side        surface of the first lens L1;    -   d1: on-axis thickness of the first lens L1;    -   d2: on-axis distance from the image side surface of the first        lens L1 to the object side surface of the second lens L2;    -   d3: on-axis thickness of the second lens L2;    -   d4: on-axis distance from the image side surface of the second        lens L2 to the object side surface of the third lens L3;    -   d5: on-axis thickness of the third lens L3;    -   d6: on-axis distance from the image side surface of the third        lens L3 to the object side surface of the fourth lens L4;    -   d7: on-axis thickness of the fourth lens L4;    -   d8: on-axis distance from the image side surface of the fourth        lens L4 to the object side surface of the fifth lens L5;    -   d9: on-axis thickness of the fifth lens L5;    -   d10: on-axis distance from the image side surface of the fifth        lens L5 to the object side surface of the sixth lens L6;    -   d11: on-axis thickness of the sixth lens L6;    -   d12: on-axis distance from the image side surface of the sixth        lens L6 to the object side surface of the seventh lens L7;    -   d13: on-axis thickness of the seventh lens L7;    -   d14: on-axis distance from the image side surface of the seventh        lens L7 to the object side surface of the eighth lens L8;    -   d15: on-axis thickness of the eighth lens L8;    -   d16: on-axis distance from the image side surface of the eighth        lens L8 to the object side surface of the ninth lens L9;    -   d17: on-axis thickness of the ninth lens L9;    -   d18: on-axis distance from the image side surface of the ninth        lens L9 to the object side surface of the optical filter GF;    -   d19: on-axis thickness of the optical filter GF;    -   d20: on-axis distance from the image side surface of the optical        filter GF to the image plane Si;    -   nd: refractive index of d-line;    -   nd1: refractive index of d-line of the first lens L1;    -   nd2: refractive index of d-line of the second lens L2;    -   nd3: refractive index of d-line of the third lens L3;    -   nd4: refractive index of d-line of the fourth lens L4;    -   nd5: refractive index of d-line of the fifth lens L5;    -   nd6: refractive index of d-line of the sixth lens L6;    -   nd7: refractive index of d-line of the seventh lens L7;    -   nd8: refractive index of d-line of the eighth lens L8;    -   nd9: refractive index of d-line of the ninth lens L9;    -   ndg: refractive index of d-line of the optical filter GF;    -   vd: abbe number;    -   v1: abbe number of the first lens L1;    -   v2: abbe number of the second lens L2;    -   v3: abbe number of the third lens L3;    -   v4: abbe number of the fourth lens L4;    -   v5: abbe number of the fifth lens L5;    -   v6: abbe number of the sixth lens L6;    -   v7: abbe number of the seventh lens L7;    -   v8: abbe number of the eighth lens L8;    -   v9: abbe number of the ninth lens L9; and    -   vg: abbe number of the optical filter GF.

Table 2 indicates aspherical surface data of each lens in the cameraoptical lens 10 according to the Embodiment 1 of the present disclosure.

TABLE 2 Conic coefficient Aspherical surface coefficient k A4 A6 A8 A10A12 R1 −2.6204E−03  4.6178E−04 −2.4355E−04 4.2899E−04 −3.4927E−043.0951E−04 R2 −4.3042E−01 −4.3659E−03 −4.0136E−03 5.0650E−03 −7.4710E−036.3040E−03 R3 −1.0017E+01  1.0632E−03 −1.6801E−02 1.7234E−02 −2.4195E−021.8156E−02 R4 −2.0836E+02 −3.0561E−02  5.4574E−02 −4.6461E−02  3.4226E−03 1.7941E−02 R5 −1.8895E+01 −4.8806E−02  7.7954E−02−6.8022E−02   3.4202E−02 −8.2057E−03  R6 −9.5241E+00 −7.0405E−03−4.5742E−03 2.0139E−02 −2.3413E−02 1.5616E−02 R7 −3.6506E+02 −5.5860E−03−5.8295E−03 −1.4375E−03   1.7912E−03 −1.6533E−03  R8  3.4362E+00 1.4377E−02 −2.1727E−02 8.8160E−03 −1.6685E−03 −1.0877E−03  R9−1.0066E+01 −1.9924E−03 −5.1436E−02 4.6579E−02 −2.4898E−02 9.7531E−03R10 −7.0108E+01 −1.4736E−02 −3.6114E−02 3.6991E−02 −1.8407E−025.8781E−03 R11  1.3864E+00 −1.0896E−02 −4.3306E−03 9.9614E−03−6.3892E−03 2.0774E−03 R12  2.5959E+00 −1.6263E−02  1.4529E−02−7.8392E−03   2.5111E−03 −5.3536E−04  R13 −1.1551E+00  1.4552E−02−1.1757E−02 3.5568E−03 −6.7011E−04 5.7533E−05 R14 −1.4557E+01 4.1867E−02 −2.1019E−02 6.7619E−03 −1.5491E−03 2.4068E−04 R15−1.8316E+00 −1.0247E−02  2.2573E−03 −1.5795E−03   4.9730E−04−9.1804E−05  R16 −5.6623E+01  1.9033E−03 −2.5171E−03 1.7465E−04 3.0467E−05 −8.6909E−06  R17 −1.0756E+02 −3.8953E−02  4.5325E−03−3.5368E−04   2.3671E−05 −7.4673E−07  R18 −8.4456E+00 −1.6425E−02 2.0415E−03 −1.5296E−04   5.2329E−06 1.8930E−07 Conic coefficientAspherical surface coefficient k A14 A16 A18 A20 R1 −2.6204E−03−2.5484E−04 1.4300E−04 −4.0715E−05 4.7683E−06 R2 −4.3042E−01 −3.1624E−039.8057E−04 −1.7193E−04 1.2844E−05 R3 −1.0017E+01 −7.5207E−03 1.8354E−03−2.6179E−04 1.7486E−05 R4 −2.0836E+02 −1.3095E−02 4.4155E−03 −7.7114E−045.7018E−05 R5 −1.8895E+01 −2.9209E−04 6.7730E−04 −1.5056E−04 1.1162E−05R6 −9.5241E+00 −6.4306E−03 1.6070E−03 −2.2187E−04 1.2946E−05 R7−3.6506E+02  7.9105E−04 −2.0044E−04   2.9724E−05 −1.9532E−06  R8 3.4362E+00  1.1253E−03 −4.2658E−04   7.7636E−05 −5.4952E−06  R9−1.0066E+01 −2.6257E−03 4.2652E−04 −3.5713E−05 1.1035E−06 R10−7.0108E+01 −1.2532E−03 1.7121E−04 −1.3425E−05 4.5640E−07 R11 1.3864E+00 −3.7561E−04 3.8320E−05 −2.0689E−06 4.6045E−08 R12 2.5959E+00  7.5064E−05 −6.4363E−06   3.0111E−07 −5.8534E−09  R13−1.1551E+00  2.0766E−06 −9.5306E−07   8.0746E−08 −2.3269E−09  R14−1.4557E+01 −2.4693E−05 1.5994E−06 −5.9231E−08 9.5538E−10 R15−1.8316E+00  1.0492E−05 −7.2493E−07   2.7500E−08 −4.3648E−10  R16−5.6623E+01  9.8468E−07 −5.8764E−08   1.7978E−09 −2.2248E−11  R17−1.0756E+02 −2.7065E−08 3.0200E−09 −9.0161E−11 9.3533E−13 R18−8.4456E+00 −2.9390E−08 1.3204E−09 −2.7294E−11 2.1937E−13

In Table 2, k is a conic coefficient, and A4, A6, A8, A10, A12, A14,A16, A18, and A20 are aspherical surface coefficients.y=(x ² /R)/{1+[1−(k+1)(x ² /R ²)]^(1/2) }+A4x ⁴ +A6x ⁶ +A8x ⁸ +A10x ¹⁰+A12x ¹² +A14x ¹⁴ +A16x ¹⁶ +A18x ¹⁸ +A20x ²⁰  (1),where x is a vertical distance between a point on an aspherical curveand the optic axis, and y is an aspherical depth (a vertical distancebetween a point on an aspherical surface at a distance of x from theoptic axis and a surface tangent to a vertex of the aspherical surfaceon the optic axis).

In the present embodiment, an aspherical surface of each lens surfaceuses the aspherical surface represented by the above formula (1).However, the present disclosure is not limited to the asphericalpolynomial form represented by the formula (1).

Table 3 and Table 4 indicate design data of inflection points and arrestpoints of each lens in the camera optical lens 10 according to theEmbodiment 1 of the present disclosure. P1R1 and P1R2 represent theobject side surface and the image side surface of the first lens L1,respectively. P2R1 and P2R2 represent the object side surface and theimage side surface of the second lens L2, respectively. P3R1 and P3R2represent the object side surface and the image side surface of thethird lens L3, respectively. P4R1 and P4R2 represent the object sidesurface and the image side surface of the fourth lens L4, respectively.P5R1 and P5R2 represent the object side surface and the image sidesurface of the fifth lens L5, respectively. P6R1 and P6R2 represent theobject side surface and the image side surface of the sixth lens L6,respectively. P7R1 and P7R2 represent the object side surface and theimage side surface of the seventh lens L7, respectively. P8R1 and P8R2represent the object side surface and the image side surface of theeighth lens L8, respectively. P9R1 and P9R2 represent the object sidesurface and the image side surface of the ninth lens L9, respectively.Data in the “inflection point position” column refers to verticaldistances from inflection points arranged on each lens surface to theoptic axis of the camera optical lens 10. Data in the “arrest pointposition” column refers to vertical distances from arrest pointsarranged on each lens surface to the optic axis of the camera opticallens 10.

TABLE 3 Number of Inflexion point Inflexion point inflexion pointsposition 1 position 2 P1R1 0 / / P1R2 2 1.175 1.335 P2R1 1 0.765 / P2R22 0.695 1.665 P3R1 0 / / P3R2 0 / / P4R1 2 0.225 1.675 P4R2 1 1.735 /P5R1 1 1.945 / P5R2 1 1.605 / P6R1 1 1.845 / P6R2 0 / / P7R1 1 1.525 /P7R2 1 1.715 / P8R1 1 1.145 / P8R2 2 1.015 3.225 P9R1 2 0.435 2.715 P9R21 0.975 /

TABLE 4 Number of Arrest point arrest points position 1 P1R1 0 / P1R2 0/ P2R1 1 1.155 P2R2 1 1.085 P3R1 0 / P3R2 0 / P4R1 1 0.375 P4R2 0 / P5R10 / P5R2 0 / P6R1 0 / P6R2 0 / P7R1 1 2.335 P7R2 1 2.695 P8R1 1 1.885P8R2 1 1.735 P9R1 1 0.785 P9R2 1 2.335

FIG. 2 and FIG. 3 respectively illustrate schematic diagrams oflongitudinal aberration and lateral color of light with wavelengths of656 nm, 587 nm, 546 nm, 486 nm, and 436 nm after passing through thecamera optical lens 10 in the Embodiment 1. FIG. 4 illustrates aschematic diagram of field curvature and distortion of light with awavelength of 546 nm after passing through the camera optical lens 10 inthe Embodiment 1, in which the field curvature S is a field curvature ina sagittal direction, and T is a field curvature in a meridionaldirection.

Table 13 hereinafter indicates various values in Embodiments 1, 2, and 3corresponding to parameters specified in the above conditions.

As shown in Table 13, the Embodiment 1 satisfies each of the aboveconditions.

In the present embodiment, the camera optical lens 10 has an entrancepupil diameter ENPD of 3.245 mm, an image height IH of full field of6.000 mm, and the FOV (field of view) of 86.40° in a diagonal direction,such that the camera optical lens 10 meets design requirements for largeaperture, wide angle and ultra-thinness while sufficiently correctingon-axis and off-axis chromatic aberration, thereby achieving excellentoptical characteristics.

Embodiment 2

FIG. 5 illustrates a camera optical lens 20 according to Embodiment 2 ofthe present disclosure.

The Embodiment 2 is substantially the same as the Embodiment 1. Themeanings of symbols in the Embodiment 2 are the same as those in theEmbodiment 1. Differences therebetween will be described below.

In the present embodiment, the eighth lens L8 has a negative refractivepower.

Table 5 and Table 6 indicate design data of the camera optical lens 20according to the Embodiment 2 of the present disclosure.

TABLE 5 R d nd vd S1 ∞  d0 = −0.310 R1 4.362  d1 = 0.300 nd1 1.5444 v155.82 R2 5.593  d2 = 0.217 R3 6.289  d3 = 0.263 nd2 1.5444 v2 55.82 R45.337  d4 = 0.025 R5 3.503  d5 = 0.311 nd3 1.6613 v3 20.37 R6 4.721  d6= 0.569 R7 19.328  d7 = 0.673 nd4 1.5444 v4 55.82 R8 −4.340  d8 = 0.068R9 −2.746  d9 = 0.494 nd5 1.6613 v5 20.37 R10 −6.076 d10 = 0.035 R11−9.097 d11 = 1.330 nd6 1.5444 v6 55.82 R12 −5.442 d12 = 0.040 R13 2.931d13 = 0.563 nd7 1.5346 v7 55.69 R14 4.056 d14 = 1.480 R15 3.633 d15 =0.368 nd8 1.6613 v8 20.37 R16 3.180 d16 = 1.070 R17 5.26 d17 = 0.586 nd91.6359 v9 23.82 R18 2.628 d18 = 0.411 R19 ∞ d19 = 0.210 ndg 1.5168 vg64.17 R20 ∞ d20 = 0.187

Table 6 indicates aspherical surface data of each lens in the cameraoptical lens 20 according to the Embodiment 2 of the present disclosure.

TABLE 6 Conic coefficient Aspherical surface coefficient k A4 A6 A8 A10A12 R1  5.5310E−01  6.0351E−04 −4.6748E−03 1.2693E−02 −1.6687E−021.4022E−02 R2  2.0931E+00 −7.5997E−03 −1.0908E−03 5.6149E−03 −6.4955E−032.8575E−03 R3 −1.5492E+01 −1.4894E−02 −3.4081E−03 6.9388E−03 −1.1998E−024.6202E−03 R4 −1.0089E+02 −9.2365E−02  1.6655E−01 −1.6910E−01  7.7600E−02 −2.7065E−03  R5 −1.5645E+01 −9.2139E−02  2.0360E−01−2.2465E−01   1.5171E−01 −6.5750E−02  R6 −1.0309E+01 −1.7638E−03−3.6412E−04 1.9835E−02 −2.9932E−02 2.1527E−02 R7 −3.4004E+02 −1.2394E−02−5.2191E−03 4.0060E−03 −5.7269E−03 4.6409E−03 R8  3.0476E+00  1.3977E−02−4.3396E−02 2.5402E−02 −2.8788E−03 −3.9140E−03  R9 −1.0996E+01−1.4145E−02 −2.6753E−02 2.2272E−02 −4.4412E−03 −2.7097E−03  R10−6.3250E+01 −2.9034E−02  6.5601E−03 1.0628E−03 −7.8850E−04 2.2633E−04R11  2.7119E+00 −2.8617E−02  9.3714E−03 −3.7506E−03   2.6894E−03−1.0405E−03  R12  2.3768E+00 −2.5008E−02  8.8336E−03 −2.3474E−03  4.9938E−04 −8.2547E−05  R13 −1.2115E+00  5.3223E−03 −5.4583E−031.6288E−03 −3.2623E−04 4.0339E−05 R14 −4.3943E+00  4.2573E−02−1.8751E−02 5.3208E−03 −1.0507E−03 1.3877E−04 R15 −3.8875E+00−1.9092E−02  6.1789E−03 −2.0020E−03   3.5096E−04 −3.6396E−05  R16−8.0810E+00 −1.1153E−02  4.2363E−03 −1.7818E−03   3.7835E−04−5.0230E−05  R17 −4.1384E+01 −3.3688E−02 −1.3513E−03 2.2603E−03−5.6280E−04 7.2458E−05 R18 −6.4490E+00 −2.1820E−02  3.1335E−03−2.6359E−04   1.2226E−05 −1.5922E−07  Conic coefficient Asphericalsurface coefficient k A14 A16 A18 A20 R1  5.5310E−01 −7.6128E−03 2.6206E−03 −5.1848E−04  4.5071E−05 R2  2.0931E+00  1.8198E−04−6.0856E−04  2.0980E−04 −2.4596E−05 R3 −1.5492E+01  2.1851E−03−2.2996E−03  6.9411E−04 −7.4734E−05 R4 −1.0089E+02 −1.4425E−02 7.0743E−03 −1.4768E−03  1.2132E−04 R5 −1.5645E+01  1.8335E−02−3.1885E−03  3.1596E−04 −1.3706E−05 R6 −1.0309E+01 −8.9648E−03 2.2051E−03 −2.9834E−04  1.7198E−05 R7 −3.4004E+02 −2.5426E−03 8.6508E−04 −1.5587E−04  1.1344E−05 R8  3.0476E+00  2.3622E−03−6.1961E−04  8.2131E−05 −4.4082E−06 R9 −1.0996E+01  2.0881E−03−6.2159E−04  9.0033E−05 −5.1667E−06 R10 −6.3250E+01 −5.2916E−05 8.8083E−06 −8.0499E−07  2.9693E−08 R11  2.7119E+00  2.1493E−04−2.4792E−05  1.5157E−06 −3.8339E−08 R12  2.3768E+00  9.3044E−06−6.2973E−07  2.2545E−08 −3.2393E−10 R13 −1.2115E+00 −3.2213E−06 1.7058E−07 −6.0881E−09  1.2019E−10 R14 −4.3943E+00 −1.2033E−05 6.6056E−07 −2.0888E−08  2.9006E−10 R15 −3.8875E+00  2.2521E−06−7.5070E−08  9.3265E−10  4.6457E−12 R16 −8.0810E+00  4.2700E−06−2.1970E−07  6.1594E−09 −7.1977E−11 R17 −4.1384E+01 −5.3958E−06 2.3480E−07 −5.5767E−09  5.6175E−11 R18 −6.4490E+00 −1.3950E−08 8.0064E−10 −1.6872E−11  1.2950E−13

Table 7 and Table 8 indicate design data of inflection points and arrestpoints of each lens in the camera optical lens 20 according to theEmbodiment 2 of the present disclosure.

TABLE 7 Number of Inflexion point Inflexion point Inflexion pointinflexion points position 1 position 2 position 3 P1R1 0 / / / P1R2 0 // / P2R1 1 0.735 / / P2R2 2 0.445 1.575 / P3R1 1 1.515 / / P3R2 2 1.4351.795 / P4R1 2 0.475 1.745 / P4R2 1 1.785 / / P5R1 1 1.935 / / P5R2 31.505 1.935 2.115 P6R1 2 1.465 2.305 / P6R2 0 / / / P7R1 1 1.825 / /P7R2 2 2.005 3.745 / P8R1 1 1.235 / / P8R2 2 1.195 3.145 / P9R1 2 0.5352.885 / P9R2 1 0.955 / /

TABLE 8 Number of Arrest point Arrest point arrest points position 1position 2 P1R1 0 / / P1R2 0 / / P2R1 1 1.155 / P2R2 1 0.985 / P3R1 0 // P3R2 0 / / P4R1 1 0.795 / P4R2 0 / / P5R1 0 / / P5R2 0 / / P6R1 0 / /P6R2 0 / / P7R1 1 2.725 / P7R2 1 3.345 / P8R1 1 2.105 / P8R2 2 2.0854.045 P9R1 1 0.975 / P9R2 1 2.365 /

FIG. 6 and FIG. 7 respectively illustrate schematic diagrams of alongitudinal aberration and a lateral color of light with wavelengths of656 nm, 587 nm, 546 nm, 486 nm, and 436 nm after passing through thecamera optical lens 20 in the Embodiment 2. FIG. 8 illustrates aschematic diagram of field curvature and distortion of light with awavelength of 546 nm after passing through the camera optical lens 20 inthe Embodiment 2.

As shown in Table 13, the Embodiment 2 satisfies the above conditions.

In this embodiment, the camera optical lens 20 has an entrance pupildiameter ENPD of 3.113 mm, an image height IH of full field of 6.000 mm,and the FOV (field of view) of 89.00° in a diagonal direction, such thatthe camera optical lens 20 meets design requirements for large aperture,wide angle and ultra-thinness while sufficiently correcting on-axis andoff-axis chromatic aberration, thereby achieving excellent opticalcharacteristics.

Embodiment 3

FIG. 9 illustrates a camera optical lens 30 according to Embodiment 3 ofthe present disclosure.

The Embodiment 3 is substantially the same as the Embodiment 1. Themeanings of symbols in the Embodiment 3 are the same as those in theEmbodiment 1. Differences therebetween will be described below.

In the present embodiment, the eighth lens L8 has a negative refractivepower.

Table 9 and Table 10 indicate design data of the camera optical lens 30according to the Embodiment 3 of the present disclosure.

TABLE 9 R d nd vd S1 ∞  d0 = −0.454 R1 3.575  d1 = 0.451 nd1 1.5444 v155.82 R2 6.803  d2 = 0.479 R3 61.833  d3 = 0.150 nd2 1.5444 v2 55.82 R45.678  d4 = 0.026 R5 6.586  d5 = 0.213 nd3 1.6613 v3 20.37 R6 11.514  d6= 0.331 R7 12.345  d7 = 0.667 nd4 1.5444 v4 55.82 R8 −4.083  d8 = 0.067R9 −2.976  d9 = 0.235 nd5 1.6613 v5 20.37 R10 −6.195 d10 = 0.103 R11−7.765 d11 = 1.007 nd6 1.5444 v6 55.82 R12 −5.268 d12 = 0.040 R13 3.301d13 = 0.819 nd7 1.5347 v7 55.64 R14 3.932 d14 = 1.814 R15 5.352 d15 =0.577 nd8 1.6613 v8 20.37 R16 4.530 d16 = 0.913 R17 7.244 d17 = 0.662nd9 1.6359 v9 23.82 R18 3.125 d18 = 0.411 R19 ∞ d19 = 0.210 ndg 1.5168vg 64.17 R20 ∞ d20 = 0.123

Table 10 indicates aspherical surface data of each lens in the cameraoptical lens 30 according to the Embodiment 3 of the present disclosure.

TABLE 10 Conic coefficient Aspherical surface coefficient k A4 A6 A8 A10A12 R1  3.9566E−01  4.4865E−04 −1.5716E−04   2.9218E−03 −5.4006E−03  5.3911E−03 R2  4.7159E+00 −2.4294E−03 1.6714E−03 −2.8185E−03 2.2389E−03−1.5519E−03 R3  9.9000E+01 −4.3846E−02 5.4217E−02 −8.6074E−02 7.6559E−02−4.4497E−02 R4 −1.0928E+02 −8.7920E−02 1.7997E−01 −2.3439E−01 1.7705E−01−8.3899E−02 R5 −6.6440E+01 −8.7451E−02 1.7889E−01 −2.1730E−01 1.7557E−01−9.4234E−02 R6 −6.0798E+01 −1.6997E−02 1.9930E−02 −2.3871E−02 2.5781E−02−1.6833E−02 R7 −8.3095E+01 −5.3892E−03 −2.0307E−03  −6.1046E−036.8569E−03 −5.1642E−03 R8  2.7208E+00  2.5704E−02 −5.4685E−02  3.3996E−02 −1.0466E−03  −1.0848E−02 R9 −1.2839E+01  1.5756E−02−6.3294E−02   4.9419E−02 −1.5414E−02  −2.0948E−03 R10 −7.1893E+01−1.3502E−02 1.2127E−03 −8.9485E−04 3.4750E−04  2.0395E−04 R11 7.4200E−01 −3.8470E−02 2.6077E−02 −1.8930E−02 9.7029E−03 −2.8593E−03R12  2.6853E+00 −2.4540E−02 8.2143E−03 −2.4610E−03 7.7976E−04−1.9756E−04 R13 −1.5582E+00 −5.6562E−03 −8.1166E−04   5.4458E−04−1.5693E−04   2.2678E−05 R14 −6.7420E+00  2.7975E−02 −1.1600E−02  3.3645E−03 −6.9127E−04   9.5952E−05 R15 −2.0250E+00 −1.9649E−023.8181E−03 −9.0118E−04 1.0781E−04 −2.4090E−06 R16 −1.3474E+01−1.4559E−02 2.7787E−03 −6.4040E−04 5.8262E−05  1.9396E−07 R17−6.0440E+01 −3.6856E−02 −1.4921E−04   2.5703E−03 −8.1684E−04  1.3042E−04 R18 −3.7215E+00 −3.7300E−02 8.2532E−03 −1.2151E−031.2075E−04 −8.0156E−06 Conic coefficient Aspherical surface coefficientk A14 A16 A18 A20 R1  3.9566E−01 −3.1444E−03   1.0861E−03 −2.0545E−04  1.6599E−05 R2  4.7159E+00 8.5524E−04 −3.1849E−04 6.9651E−05 −6.5754E−06R3  9.9000E+01 1.7812E−02 −4.7236E−03 7.4001E−04 −5.1629E−05 R4−1.0928E+02 2.5249E−02 −4.5924E−03 4.3952E−04 −1.4949E−05 R5 −6.6440E+013.2931E−02 −7.2236E−03 9.0599E−04 −4.9599E−05 R6 −6.0798E+01 6.3296E−03−1.3888E−03 1.6709E−04 −8.5059E−06 R7 −8.3095E+01 2.4592E−03 −7.6350E−041.3643E−04 −9.9854E−06 R8  2.7208E+00 6.7422E−03 −1.9409E−03 2.8183E−04−1.6442E−05 R9 −1.2839E+01 3.2931E−03 −1.0785E−03 1.5741E−04 −8.8242E−06R10 −7.1893E+01 −1.4183E−04   3.1698E−05 −3.1322E−06   1.1655E−07 R11 7.4200E−01 4.9385E−04 −4.9948E−05 2.7512E−06 −6.3887E−08 R12 2.6853E+00 3.1402E−05 −2.8581E−06 1.3635E−07 −2.6460E−09 R13−1.5582E+00 −1.8060E−06   7.6901E−08 −1.4514E−09   4.1977E−12 R14−6.7420E+00 −8.7639E−06   5.0532E−07 −1.6703E−08   2.4107E−10 R15−2.0250E+00 −1.1174E−06   1.5491E−07 −8.3771E−09   1.6766E−10 R16−1.3474E+01 −6.2354E−07   6.7241E−08 −3.0096E−09   4.8747E−11 R17−6.0440E+01 −1.2089E−05   6.5938E−07 −1.9635E−08   2.4580E−10 R18−3.7215E+00 3.4887E−07 −9.5759E−09 1.5081E−10 −1.0420E−12

Table 11 and Table 12 indicate design data of inflection points andarrest points of each lens in the camera optical lens 30 according tothe Embodiment 3 of the present disclosure.

TABLE 11 Number of Inflexion point Inflexion point Inflexion pointinflexion points position 1 position 2 position 3 P1R1 0 / / / P1R2 0 // / P2R1 1 0.185 / / P2R2 2 0.465 1.675 / P3R1 1 1.255 / / P3R2 2 1.3051.855 / P4R1 2 0.685 1.775 / P4R2 1 1.795 / / P5R1 1 1.945 / / P5R2 11.995 / / P6R1 1 1.505 / / P6R2 0 / / / P7R1 1 1.805 / / P7R2 1 2.295 // P8R1 2 1.065 3.295 / P8R2 2 0.965 3.155 / P9R1 3 0.475 3.025 3.795P9R2 1 0.915 / /

TABLE 12 Number of Arrest point arrest points position 1 P1R1 0 / P1R2 0/ P2R1 1 0.335 P2R2 1 0.955 P3R1 1 1.595 P3R2 1 1.615 P4R1 1 1.065 P4R20 / P5R1 0 / P5R2 0 / P6R1 0 / P6R2 0 / P7R1 1 / P7R2 0 / P8R1 1 1.885P8R2 1 1.795 P9R1 1 0.855 P9R2 1 2.285

FIG. 10 and FIG. 11 respectively illustrate schematic diagrams of alongitudinal aberration and a lateral color of light with wavelengths of656 nm, 587 nm, 546 nm, 486 nm, and 436 nm after passing through thecamera optical lens 30 in the Embodiment 3. FIG. 12 illustrates aschematic diagram of field curvature and distortion of light with awavelength of 546 nm after passing through the camera optical lens 30 inthe Embodiment 3.

Table 13 below lists values corresponding to the conditions in thepresent embodiment according to the above conditions. Apparently, thecamera optical lens in the present embodiment satisfies the aboveconditions.

In this embodiment, the camera optical lens 30 has an entrance pupildiameter ENPD of 3.358 mm, an image height IH of full field of 6.000 mm,and the FOV (field of view) of 84.00° in a diagonal direction, such thatthe camera optical lens 30 meets design requirements for large aperture,wide angle and ultra-thinness while sufficiently correcting on-axis andoff-axis chromatic aberration, thereby achieving excellent opticalcharacteristics.

TABLE 13 Parameters and Embodiment Embodiment Embodiment Conditions 1 23 f1/f 2.00 5.50 2.01 d7/d8 2.00 9.90 9.96 f 6.327 6.071 6.549 f1 12.65433.384 13.130 f2 −9959.220 −71.429 −11.447 f3 96.388 18.410 22.616 f48.158 6.548 5.694 f5 −9.503 −7.963 −8.820 f6 30.757 21.951 26.231 f722.949 16.754 26.373 f8 112.090 −56.451 −61.313 f9 −7.178 -8.959 −9.133FNO 1.95 1.95 1.95 TTL 8.840 9.200 9.298 IH 6.000 6.000 6.000 FOV 86.40º89.00º 84.00º

The above are only the embodiments of the present disclosure. It shouldbe understood that those skilled in the art can make improvementswithout departing from the inventive concept of the present disclosure,and these improvements shall all belong to the scope of the presentdisclosure.

What is claimed is:
 1. A camera optical lens, comprising, from an objectside to an image side: a first lens; a second lens having a negativerefractive power; a third lens; a fourth lens; a fifth lens; a sixthlens; a seventh lens; an eighth lens; and a ninth lens, wherein thecamera optical lens satisfies following conditions: 2.00≤f1/f≤5.50;2.00≤d7/d8≤10.00; and −12.00≤(R13+R14)/(R13−R14)≤−5.00, where f denotesa focal length of the camera optical lens, f1 denotes a focal length ofthe first lens, d7 denotes an on-axis thickness of the fourth lens, d8denotes an on-axis distance from an image side surface of the fourthlens to an object side, R13 denotes a central curvature radius of anobject side surface of the seventh lens, and R14 denotes a centralcurvature radius of an image side surface of the seventh lens.
 2. Thecamera optical lens as described in claim 1, further satisfyingfollowing conditions: −16.17≤(R1+R2)/(R1−R2)≤−2.14; and0.02≤d1/TTL≤0.08, where R1 denotes a central curvature radius of anobject side surface of the first lens, R2 denotes a central curvatureradius of an image side surface of the first lens, d1 denotes an on-axisthickness of the first lens, and TTL denotes a total optical length fromthe object side surface of the first lens to an image plane of thecamera optical lens along an optic axis.
 3. The camera optical lens asdescribed in claim 1, further satisfying following conditions:−3148.17≤f2/f≤−1.17; 0.60≤(R3+R4)/(R3−R4)≤249.12; and 0.01≤d3/TTL≤0.04,where f2 denotes a focal length of the second lens, R3 denotes a centralcurvature radius of an object side surface of the second lens, R4denotes a central curvature radius of an image side surface of thesecond lens, d3 denotes an on-axis thickness of the second lens, and TTLdenotes a total optical length from an object side surface of the firstlens to an image plane of the camera optical lens along an optic axis.4. The camera optical lens as described in claim 1, further satisfyingfollowing conditions: 1.52≤f3/f≤22.85; −110.87≤(R5+R6)/(R5−R6)≤2.45; and0.01≤d5/TTL≤0.05, where f3 denotes a focal length of the third lens, R5denotes a central curvature radius of an object side surface of thethird lens, R6 denotes a central curvature radius of an image sidesurface of the third lens, d5 denotes an on-axis thickness of the thirdlens, and TTL denotes a total optical length from an object side surfaceof the first lens to an image plane of the camera optical lens along anoptic axis.
 5. The camera optical lens as described in claim 1, furthersatisfying following conditions: 0.43≤f4/f≤1.93;0.25−(R7+R8)/(R7−R8)≤1.45; and 0.03≤d7/TTL≤0.11, where f4 denotes afocal length of the fourth lens, R7 denotes a central curvature radiusof an object side surface of the fourth lens, R8 denotes a centralcurvature radius of the image side surface of the fourth lens, and TTLdenotes a total optical length from an object side surface of the firstlens to an image plane of the camera optical lens along an optic axis.6. The camera optical lens as described in claim 1, further satisfyingfollowing conditions: −3.00≤f5/f≤−0.87; −5.88≤(R9+R10)/(R9−R10)≤−1.77;and 0.01≤d9/TTL≤0.08, where f5 denotes a focal length of the fifth lens,R9 denotes a central curvature radius of the object side surface of thefifth lens, R10 denotes a central curvature radius of an image sidesurface of the fifth lens, d9 denotes an on-axis thickness of the fifthlens, and TTL denotes a total optical length from an object side surfaceof the first lens to an image plane of the camera optical lens along anoptic axis.
 7. The camera optical lens as described in claim 1, furthersatisfying following conditions: 1.81≤f6/f≤7.29;1.99≤(R11+R12)/(R11−R12)−9.33; and 0.05≤d11/TTL≤0.22, where f6 denotes afocal length of the sixth lens, R11 denotes a central curvature radiusof an object side surface of the sixth lens, R12 denotes a centralcurvature radius of an image side surface of the sixth lens, d11 denotesan on-axis thickness of the sixth lens, and TTL denotes a total opticallength from an object side surface of the first lens to an image planeof the camera optical lens along an optic axis.
 8. The camera opticallens as described in claim 1, further satisfying following conditions:1.38≤f7/f≤6.04; and 0.03≤d13/TTL≤0.13, where f7 denotes a focal lengthof the seventh lens, d13 denotes an on-axis thickness of the seventhlens, and TTL denotes a total optical length from an object side surfaceof the first lens to an image plane of the camera optical lens along anoptic axis.
 9. The camera optical lens as described in claim 1, furthersatisfying following conditions: −18.72≤f8/f≤26.57;−113.76≤(R15+R16)/(R15−R16)≤22.56; and 0.02≤d15/TTL≤0.15, where f8denotes a focal length of the eighth lens, R15 denotes a centralcurvature radius of an object side surface of the eighth lens, R16denotes a central curvature radius of an image side surface of theeighth lens, d15 denotes an on-axis thickness of the eighth lens, andTTL denotes a total optical length from an object side surface of thefirst lens to an image plane of the camera optical lens along an opticaxis.
 10. The camera optical lens as described in claim 1, furthersatisfying following conditions: −2.95≤f9/f≤−0.76;1.02≤(R17+R18)/(R17−R18)≤4.50; and 0.03≤d17/TTL≤0.13, where f9 denotes afocal length of the ninth lens, R17 denotes a central curvature radiusof an object side surface of the ninth lens, R18 denotes a centralcurvature radius of an image side surface of the ninth lens, d17 denotesan on-axis thickness of the ninth lens, and TTL denotes a total opticallength from an object side surface of the first lens to an image planeof the camera optical lens along an optic axis.